Transforming system.



No. 724,060. PATENTED MAR. 31, 1903. N. THOMAS, JR.

TRANSFORMING SYSTEM.

APPLICATION FILED NOV. 25, 1901.

30 MODEL. 2 SHEETS-SHEET 1.

Wihpesszs No. 724,060. PAT-BNTED MAR. 31., 1903.

- N. THOMAS, JR.

TRANSFORMING SYSTEM.

APPLICATION FILED NOV. 25, l 901. N0 MODEL.

2 SHEETS-SHEET 2.

13 1 has @y lflorge ys,

UNITED STATES NOAH THOMAS, J R.,

PATENT OFFICE.

OF LONDON, o111o.

TRANSFORMING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 724,060, dated March 31, 1903. Application filed November 25. 1901. Serial No- 83,661. (No model.)

To (II/7 whom it may concern.-

Be it known that I, NOAH THOMAS, Jr., a citizen of the United States, residing at London, in the county of Madison and State of Ohio, have invented a new and useful Transforming System, of which the following is a specification.

This invention relates to systems of electrical distribution in general, and more particularly to transformer systems, the object of the invention being to provide such a system in which the transformers will be arranged to give a practically constant flow of current in the secondary or working circuit.

A further object of the invention is to provide in connection with the transformers means for making and breaking the circuits of the primary windings for the well-known purpose, this making-and-breaking means being vibrated under the influence of the poles of the cores with which the transformers are provided or under the influence of independent electromagnets, as the arrangement of the system may require.

In the drawings forming a portion of this specification, and in which similar numerals of reference designate like and corresponding parts in the several-views, Figure is a diagrammatic representation of the circuits of a system embodying the present invention and showing two stationary transformers to form induction-coils, one of these induction-coils being shown in section and the other in elevation. Fig. 2 is a central longitudinal section of one form of armature or vibrator. Fig. 3 shows in elevation the vibrator with the parts disassembled. Fig. 4 is a view similar to Fig. 2, showing a modification of the vibrator or armature. Fig. 5 is an elevation showing the parts of the second form of vibrator disassembled. Fig. 6 is alongitudinal section showing a core for the induction-coil comprising iron-filings in a suitable casing. Fig. 7 shows a modification of a vibrator in which the head and stem are of soft iron. Fig. 8 is another vibrator of stillsimpler form.

Referring now to the drawings, the present invention comprises two transformers, although more than two may be used, in the form of induction-coils, one of the inductioncoils comprising a paramagnetic core 10,hav-

ing a primary winding 11, insulated theresecondary coil 15, the induction-coils being disposed in axial alinement and with the mutually-adjacent ends of the cores separated by a slight inter-space. 1

The mutually-adjacent ends of the cores 10- and 13 are provided with platinum tips 16 and 17, respectively, which are adapted for alternate engagement by the head of the vibrator. One form of vibrator, as shown in Figs. 1, 2, and 3 of the drawings, comprises a body portion 18, of vulcanite or other suitable insulating material, at the upper end of which is a longitudinal flange 19, having a transverse perforation 20, the formation of the flange 19 resulting in shoulders 21 and 22, upon which are disposed blocks 23 and 24, of soft iron. These blocks are held in place by means of a hard-rubber screw 25, passed through the perforation and having its opposite ends engaging with threads in recesses 26 and 27 in the inner faces of the blocks 23 and 24. These blocks are cylindrical in form, as shown in Fig. 3, to. permit their rotation in their application to the screw to firmly clamp them against the flange 19.

Near the lower end of the body portion 18 is a perforation 28, through which is passed a pivot 29, having a bearing in an ear 30 upon a base 31, and longitudinally of the body portion are formed passages 33 and 31 for the reception of wires 35 and 36, which are in electrical contact with the blocks 23 and 2-1, respectively, and to the lower ends of which are connected conducting-wires 87 and 38.

The position of the armature is regulated by the springs 35 36, connected to its opposite sides and'forming conductors connecting the wires 35 and 37 and the wires 36 and 38, respectively, the spring 35 being somewhat stronger than the spring 36 and when the current is shut off keeps the block 2% in contact with the end of the core 13.

As shown in Fig. 1 of the drawings, the conducting-wire 37 leads to one terminal of the primary winding 14, the opposite terminal of the winding being connected with the positive pole of a battery 3.) through the medium of the conductor 40. The conductor 38 leads to one terminal of the primary winding 11, while the conductor 41 leads from the opposite terminal of the primary winding to the positive pole of the battery 30. The negative pole of the battery 39 has a conductor 42 connected therewith, and which conductor comprises branches 43 and 44, of which the former is electrically connected with the core 18, while the latter branch 44 is electrically connected with the core 10. Thus when the block 24 is in engagement with the cap 17 the primary winding 11 is in circuit with the battery, and when the block 23 is in engagement with the cap 10 the primary winding 14 is in circuit with the battery. The result is that when the battery connect-ion is made, the block 24 being in contact with the cap 17, the core 10 is energized, and the vibrator is attracted and is moved, with the block 23, into engagement with the cap The circuit of the winding 11 is thus broken, while the circuit of the winding 14 is ciosed, with the result that the core 13 acts to draw the vibrator to its initial position, and this operation is continued so long as either conductor 42 or is connected with the battery. This operation of the vibrator of course acts to convert the current from the battery 39 from a continuous current to a pulsating current, with the result that induced currents will be set up in the secondary winding. These secondary windings are so applied that the flow of current therethrough will be in opposite directions in the two windings, and, as shown in Fig. 1 of the drawings, these windings are connected in opposition through the medium of conductors 45 and 46. Across these condoctors is connected a translating device in the form of an arc-lamp 47, the result being a practically constant discharge between the terminals of the lamp, which results in an even light.

\Vhile in Fig. 1 of the drawings there is shown a translating device in the form of an arc-lamp, it will of course be understood that anystyle of such device may be connectedin the same way, and it will furthermore be appreciated that instead of employing the prescnt system to secure a high-potential current the connections after a change of winding maybe reversed to transform a high-potential current to a low-potential current.

In Figs. 4 and 5 of the drawings there is shown a form of vibrator or armature which may be employed when the cores do not carry the contact-points and in which contactsprings and 51 are secured to the sides of the body portion, near the lower end thereof, and are adapted for engagement with contact-points supported upon binding-posts in the usual manner.

The form of the invention shown in Figs. 4 and 5 comprises a body portion 52, of suitable insulating material, upon the upperend of which is fixedasingle block 53, of soft iron, held in place by means of a screw 54, and in the lower portion of which body are formed passages 55 and 56 to receive conductors which are adapted for engagement with the bases of the contact-springs 50 and 51.

In Fig. 7 of the drawings is shown a further modification of the vibrator in which the stem 60 and the head 61 are both made of soft iron and maybe formed integral. In this form of the modification the armature is mounted upon a pivot adapted to a suitable opening 62 at its end opposite to the head, and on opposite sides of the body portion, adjacent the pivot, are fixed insulating-blocks (31-3 and 64. Upon these blocks are mounted spring-arms (35 and (36, which are adapted to alternately engage contact-points carried by screws 67 and (58,, which are engaged with posts 09 and 70. In this form of the modification the posts 09 and 70, which are of conducting material, are connected, by means of conductors 43 and 44 and the conductor 42, with one pole of the battery, the same as are the cores of the induction-coils in Fig. l of the drawings.

In Fig. 8 is illustrated a still further modification ot armature which may be employed, the head 71 and body portion 72 of the armature being simply formed of a piece of soft iron adapted to be pivoted at 73 and provided with suitable openings 74 75 for connection to conductors leading to the primary windings. In this case two batteries must be employed, the primary winding of one coil and the core of the opposite coil being in the circuit of one battery, and vice versa, as will be readily understood.

It has been found that an eliicient core for the transformer may be made of iron-filings, and in Fig. (3 of the drawings there is shown a core for the induction-coil comprising a casing 76, which will be of paper, of iron, or

of any other suitable material, and said casing, which is of tubular form, has an iron plug 77 at each end to prevent displacement of the filings. \Vhen the coils are connected in the manner shown in Fig. 1, one of the plugs 77 is provided with a platinum contactplate 78.

\Vhile in Fig. 0 of the drawings are shown plugs 77, of iron, it will of course be understood that any other means may be provided for holding the iiiings in place.

It will of course be understood that any other specific form of vibrator may be employed in connection with the induction-coil of the system above described and that various modifications in the windings, propor-.

tions, &c., may be made without departing from the spirit of the invention--as, for instance, the two coils may. be connected both in series with themselves and the vibrator or in multiple with themselves and in series with the vibrator.

The core described maybe used with good circuits to a common working circuit, and a vibrator connected in the primary circuit and adapted to alternately make and break the circuits through the primaries of the coils.

2. A transforming system comprising two oppositely-disposed induction-coils, a source of electrical supply to which the primaries of the coils are connected, the cores of said coils being also included in the primary circuit, a vibrator connected to the primary circuit and adapted to establish a circuit through the primary of one coil by contact with the core of the opposite coil, the secondaries of said coils being connected in a common working'circuit.

3. A transforming system comprising two oppositely-disposed induction-coils having their secondaries connected through independent transmitting-circuits to a common working circuit, a source of electrical supply to which the primaries are connected, a vibrator located between the coils, said vibrator having current-conductors connected in the primary circuit and being adapted to make and break the circuit alternately in the primaries of said coils.

4. A vibrator comprising a body portion of insulating material and adapted for vibratory movement, and a paramagnetic block fixed to one end of the body portion and extending transversely thereof.

. 5. A vibrator comprising a body portion of insulating material adapted for vibratory movement, a longitudinal flange at one end of the body portion,'passages' formed longitudinally of the body portion, and opening through the upper end thereof at opposite sides of the flange, a paramagnetic block fixed to the body portion at each side of the flange and insulated mutually, and conductors passed through the passages and electrically connected with the blocks respectively.

6. A vibrator comprising a body portion having longitudinal passages, paramagnetic blocks fixed to the body portion and mutuallyinsulated,and conductors passed through the passages and having electrical connection with the blocks.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

O. R. HoRNBEoK, WILFRID SHARP; 

